Alien species, such as the lionfish, can cause immense damage in new habitats (Picture: Getty) Invasive alien species cost the planet £335 billion in 2019 and are an ‘underappreciated, underestimated ...

alien beings living on a distant world around another star would look 'just like animals on Earth' and be formed from the same processes, an astrobiologist claims. Arik Kershenbaum, author of a new ...

Alien lifeforms are likely to have evolved their own unique ways of communicating, so how might humanity communicate with them if ever make contact? "We know where to look. We know how to look." ...

Alien organisms could reach Earth through our own crafts exploring outer space, scientists have warned. Humanity has, over time, moved species across continents as we migrate; it is possible the same ...

Alien species are taking over nature. Rogue rats are running amok on remote islands, predatory crayfish are cruising English rivers, Japanese knotweed is strangling South Wales, water hyacinth is ...

All life on Earth is related. We are all descended from the first single-celled organisms that formed on the planet eons ago. Over the course of billions of years, evolution split life off into ...

Have you ever wondered what would happen if a planet full of aliens was ever discovered? It's pretty mind-boggling to think just how vast the universe could be, and how much life could actually exist ...

Conspiracy theorists reckon they’ve stumbled across the latest evidence that Mars once supported alien life. It’s an ancient carving of a ‘reptilian’ face sitting on a hillside on the rocky martian ...

One UFO hunter believes he has finally found the proof which confirms the existence of life on Mars. Alien enthusiast Scott C Waring has claimed to discover two separate creatures crawling along the ...